“How Did Modest Katrina Morph Into Monster?” Based off the Houston Chronicle article by Mark...
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Transcript of “How Did Modest Katrina Morph Into Monster?” Based off the Houston Chronicle article by Mark...
![Page 1: “How Did Modest Katrina Morph Into Monster?” Based off the Houston Chronicle article by Mark Carreau.](https://reader035.fdocuments.in/reader035/viewer/2022081603/56649f1f5503460f94c36abc/html5/thumbnails/1.jpg)
“How Did Modest Katrina Morph Into Monster?”
Based off the Houston Chronicle article by Mark Carreau
![Page 2: “How Did Modest Katrina Morph Into Monster?” Based off the Houston Chronicle article by Mark Carreau.](https://reader035.fdocuments.in/reader035/viewer/2022081603/56649f1f5503460f94c36abc/html5/thumbnails/2.jpg)
Object
• Examine how the author explains the intensification of Hurricane Katrina as it approached landfall.
• Explain the basic science behind the intensification process in a hurricane still over water.
• Explore the accuracy of hurricane intensification forecast.
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Before
• Thursday, August 25th
• Max Sustained Winds: 75mph
• Max Wind Gusts: 90mph
• Category: 1
- Katrina spent approximately 7 hours over land before moving into the Gulf of Mexico.
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![Page 5: “How Did Modest Katrina Morph Into Monster?” Based off the Houston Chronicle article by Mark Carreau.](https://reader035.fdocuments.in/reader035/viewer/2022081603/56649f1f5503460f94c36abc/html5/thumbnails/5.jpg)
After
• Sunday, August 28th
• Max Sustained Winds: 150 kts
• Minimum Central Pressure: 902mb
• Category: 5
- Katrina “morphed” in a mere three days, quickly attaining the status of a major hurricane.
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![Page 7: “How Did Modest Katrina Morph Into Monster?” Based off the Houston Chronicle article by Mark Carreau.](https://reader035.fdocuments.in/reader035/viewer/2022081603/56649f1f5503460f94c36abc/html5/thumbnails/7.jpg)
Causes for intensification as proposed by Mr. Carreau
• Lack of a Jet Stream to deflect and sheer the hurricane.
• High water temperatures in the Gulf of Mexico.
• Bermuda High contributing to low cloud coverage and intense incoming solar radiation.
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Casey’s Media Accuracy Meter
1. University Level:
2.Knows Their Stuff: == 3. Guess and Check:
4. No Research at All:
5. FOX News:
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Ocean Temperatures
• Provide Fuel for the Hurricane• Higher water temperatures increase the rate of
rising air at the core of the storm, helping it organize. Rising air in the core means a lower central pressure, pulling in more air from the surrounding areas and intensifying the storm.
• “Two to four degrees may not seem like a lot, but to a hurricane, that is like the difference between running on 89 and 92 octane fuel. That is a significant amount of energy for a storm.”
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Combined with…
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Equals:
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![Page 14: “How Did Modest Katrina Morph Into Monster?” Based off the Houston Chronicle article by Mark Carreau.](https://reader035.fdocuments.in/reader035/viewer/2022081603/56649f1f5503460f94c36abc/html5/thumbnails/14.jpg)
So what’s all this talk about getting high?
• Bermuda High prevented any cloud cover from hindering the warming in the Gulf of Mexico on the days prior to the storms entrance.
• Also allowed the Gulf Coast waters to rise and transfer their energy into the circulation of the storm.
• Bermuda High has expanded this summer until it covered much of the Gulf. Also the reason why your yard is probably brown right about now.
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So we knew this was going to happen right?
….wwwwweeeelllll, not exactly.
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Problems with intensification forecast
• Too many variables: temperature, winds, moisture, and energy.
• All systems are interdependent on each other.
• Forecast generally run 5-7 days in advance, meaning change is certain.
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From the article….
• “Experts know what it takes to fuel such fury, but can’t predict such a storm in advance.”
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• All data is taken from the NCDC website. Graphs and charts come from the write up summary of Katrina produced by NOAA.
• All other images (clip art, monkeys, etc) are public domain.